Water-circulation system for explosion-engines.



. I W. K. LEGG ETT. WATER CIRCULATION SYSTEM FOR EXPLGSION ENGINES. APPLICATION H LED NOV. 24, 19M.

Patented Mar. 28, 1916.

emarnn snares parent oration.

WILLARD KILEGGET'I, OF JACKSON, MICHIGAN, ASSIGNOR F ONE-THIRD T0 EUGENE PHILLIPSAND ONE-THIRD TO JAMES A. PHILLIPS, BOTH OF JACKSON, MICHIGAN.

WATER-CIRCULATION SYSTEM FOR. EXPLOSION-ENGINES.

Application filed November 24, 1914. Serial 110.873,?72.

To all whom it may concern:

Be it known that I, WILLARD K. Lnoen'r'r, a citizen of the United States, and a resident of Jackson, in the coun'tyof Jackson and State of Michigan, have invented a new and i useful Improvement in -Water-Circulation Systems for Explosion-Engines, of which the following is a specification.

My invention is an improvement in water circulation systems for explosion engines,

1 and has for its object to provide an attachnient of the character specified, designed to be interposed between the exhaust oi the engine.and the waterline of the radiator for utilizing the ilnpulses of the exhaust to supply cold air to the radiator 01' engine for cooling the same, and aiding the circulation of the water. i

In the drawings: Figure 1 is of theattachinent in place, Fig. 2 is a section on the line 2-2 of Fig. 1, looking in the directicn of the arrows adjacent to the line, Fig. 3 is a top plan view of the attachment, and Fig. 4 is a sectional view showing the arrangement of connection between the attachnient and the water line.

water line 2 oi the radiator headhas a polygonal extension T tl'or engage ment by awrench or the ilike topernlitthe head to be renioved onreplaced. 'lhe opposite end of the, cylinder iso'pen and internally threaded for a purpose to be presently described, andnear the closed end a diaphragm 8 arranged transversely of the cylinder, the said diaphragm having a horizontal portionlprovideil with a port 8.

The cylinder is provided with an internal] y threadedopening 9 just above the port and normally closed by a plug 10. A ball prevent theretnrn otthe air. The cylinder valve 11 rests upon the seat and normally closes the port, the valvefbeing in fact a check valve for permitting air to escape from the cylinderthrough theport and to is provided-With a depending nipple 12 at Specification of Letters Patent.

an end view Patente d Man.

the closed end, and a port 13 is provided be tween the nipple and the interior of the cylinder.

A plug 14. is threaded into the nipple, the plug having a central opening or port 15, and a ball valve 16 normally closes the port. It will be noted from an inspection of Fig. 2 that a seat is provided ateach port Sand 15, in which the ball valve 11 or 16 rests when the valve is closed, and the said valves are check valves, controlling the outlet and the inlet, respectively, ofthe cylinder. Accessmay be had to the valve 11 by removing the-plug 10, and access may be had to the valve'lti or to the port 1:3,by ren'ioving the plug. Each plug is polygonal at its outer end for engagenien'tuby a wrench or the like to PQYlTllttllQ removal of the plug.

A pipe 17 "is provided for connecting the cylinder with the water line 1 of the radiator, andthe said pipe is provided ateach end with an angular portion 18 and 19, respmtively. The angular portion 18 of thepipe 17 is externallythreaded and engagcd with the open end of the cylinder.

The opposite end 1!) of the pipe passes throughanopening in the voter line 2, the arrangcincnt heing suchthat a current otair flowing through the pipe 17 from the cylinder will enter the water line at an acute. angle to the direction of low ofthe water through the water line.

Referring to Fig. 1 the arrows indicate theeourse oithe water in'the water line and the course o't air in thepipe l7. and it will benotcd from an inspectiorrotthcsearrows that the pipe 17 connects with the' pipe which carries the water away irointhe radiator. "l he c 'linder o't the engine is indicanon 20, and theexhaust manifoldat Q1, andthe pipe 1 lezlds from the cxhaustnmnifold to'the cylinder. engaging within aninternally threaded nipule 22 at "the end:ad- :jacent tothchead 5.

A piston 23 arranged within the cylindcr,the,piston being cup-shaped aml hariug the end adjacent'to thehead 5 closed. and theopposite QINl'lXEiXlQ OPGII. neon spring 24 isarrangedbetween the closed endo'tthe piston and thediaphragnr 8%, the spring acting normally to force the piston toward the head 5. In order however, to prevent the piston coveringthe inlet of tlie nipple 22, a.

that when the piston engages the stop it will be checked in its movement toward the nipple 23 to a position such that this nipple is always uncovered.

In operation everv exhaust impulse will beltransmitted to the interior of the cylinder through the nipple 23, and the said impulses will drive the piston toward the diaphragm 8. Each exhaust impulse will thus move the piston toward the diaphragm 8 a greater or less distance depending upon the force of the impulse, and the spring 2+1- will move the piston in the opposite direction, returning the piston into contact with the stop 25 every time that the piston is moved toward the diaphragm 8.

Whenever the piston moves toward the head 5, under the impulse of the spring,4tir will be drawn into the interior of the cylinder through the ports 13 and 14, the valve 16 being lifted to permit the inflow of the air. When the piston is moved in the opposite direction by the exhaust impulses,

the air already in the cylinder will be forcedout through the port 8 past the valve 11 and to the pipe 17 into the water line 2 of the radiator. The air cannot pass outwardly through the port 14 because of the check valve 16, and hence it must pass through the port 8. Thus during the running of the engine a current of air is continuously forced into the water line of the radiator.

It will be understood that the attachment is arranged in accordance with the type of engine used. For instance the piston will be arranged between the front ofthe engine and the radiator fan when a radiator fan is used. and the cylinder will be connected to the exhaust manifold opposite the opening forthe No. 1 cylinder.

The fundamental purpose of the attachment is not to supplv cold air to either the radiator or engine, but by means of that air acting with the injector to enforce the circulation of water through the system.

The cooling of the water with the air is.

incidental.

It is obvious also that the pipe 17 might be arranged in the water line conducting the water to the radiator. The air in the water will pass up through the water to the top of the radiator, and will pass out at the top instead of through the over-flow of the radiator. In any event the attachment will assist in the circulation of the water, and will also exert a considerable cooling action of itself. Preferably the arrangement is as shown in Fig. 4, wherein the outlet 27 of the pipe leading from the cylinder to the water line is reduced at its outlet end as indicated at 28. The water line pipe 29 from the radiator to the engine is annularly reduced as indicated at 30 just beyond the reduced end of the pipe 27, and the pipe 27 is arranged ccaxial with the pipe 29. .The-connection is thus an injector connection, so that the air passing from the cylinder will act to drive the water in the water pipe on its course.

It will be understood that the cylinder 4: may be provided with an exhaust port, if desired, so arranged that it will be uncovered at the end of the movement ofthe piston away from the inlet port for the exhaust. This however, in practice is not essential since the pumping action of the cylinder and piston is complete without the exhaust. The cylinder may be considered as having an air chamber at the end remote from the exhaust inlet, andthe air chamber is provided with inlet and outlet ports, and with check valves for controlling the ports.

I claim 1. In an explosion engine having a Water circulation cooling system, an air pumpconnected to the said system to inject air thereinto in the direction of flow of the cooling fluid, and comprising a cylinder having at one end check controlled inlet and outlet ports, and having at the other end a port adapted for connection with the exhaust of the engine, a piston in the cylinder and adapted to be moved toward the inlet and outlet ports by the exhaust impulses, a spring for returning the piston, and a delivery pipe connected with the cylinder on the outer side of the inlet port and delivering to the water circulation system in the direction of the flow of the fluid,

2. In an explosion engine having a Water circulation cooling system, an air pump connected to the said system to inject air thereinto in the direction of flow of the cooling fluid, said pump comprising a cylinder having at one end'an inlet port for connection with the exhaust of the engine, a connection between the opposite end of the cylinder and the water circulation system, said connection delivering in the direction of fiow, the cylinder having inlet and outlet ports at the said last-named end, the outlet ports being between the connection with the circulation system and the cylinder, a piston in the cylinder adapted to be'moved toward the ports by the exhaust impulses, a spring for returning the piston, and check valves at the inlet and the outlet ports of the cylinder.

3. In an explosion engine having a water circulation cooling system, an air-pump connected to .the said system to inject air thereinto, and having the inlet thereof discharging in the direction of flow of the cooling fluid, said pump comprising a cylinder having at one end an inlet port for connection connection, the cylinder having an inlet with the exhaust of the engine, a piston in port at the said last-named end, and a check the cylinder and adapted to be moved by valve at the inlet port.

the exhaust impulses away from the inlet WILLARD K. LEGGETT. port, a spring for returning the piston,' the Witnesses: opposite end being connected to the Water LACERNE PATCH,

clrculation system, a check valve in the said EUGENE PHILLIPS. 

